Heating apparatus.



No. 641,9", Patented 1an. 23, |900.

.1. T. wlLKlNs, w. H. wELLs- & w. BAKER.

HEATING APPARATUS.

(Application filed Oct. 19, 1899.)

| 1 l l g l I Nrrnn STATESv Enron.

Arnim 'BALDWINSVILLE NEW YORK.

H EATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 641,911, dated January23, 1900. Application filed October 19, 1899. Serial No. 7343057. (Nomodel.)

To @ZZ whom it may' concern:

Be it known that we,JoHN T. WILKINs, WILa LIAM H. WELLS, and WILLIAMBAKER, of Baldwinsville, in vthe county of Onondaga, in the State of NewYork, have invented new and useful Improvements in Heating Apparatus, ofwhich the following, taken in connection with the accompanying drawings,is a full, clear, and exact description.

y This invention relates to improvements in devices for heating water inboilers used lfor domestic purposes and in which the boilers areconnected in the ordinary way with the sink, bath-tub, washbowls, dac.

Our object is to produce such a heater by which we are able to quicklyand inexpensively heat the Water in the boiler and at the same time becheap and durable in its construction and of great utility; and to' thatend our invention consists in the several new and novel features ofconstruction and operation which are hereinafter described, andspecically set forth in the claims hereunto annexed. It is constructedas follows, reference being had to the accompanying drawings,in which*Figure l is a side View of the heater complete, the inner and outershells being broken away centrally to show the interior construction.Fig. 2 is a vertical section of what is shown in Fig. l and providedwith a pipe and a faucet for the purpose of drawing off the hot waterfrom the top of the heater. Fig. 3 is a section on line X X in Fig. 1.Fig. 4t is a section on line Y Y in Fig. 2.

A is the heater, which comprises an outer cylinder ct, having aninlet-pipe a at the bottom and an exit a" at the top. The outer cylinderis provided at the bottom with an annular rim b, extending outwardly andinwardly, as shown in Fig. 2, the inwardly-extending rim or fiangebeing` provided with a recess b for the purposes hereinafter speciiied.The upper end of the cylinder is provided with an outwardly-extendingflange or rim c, provided Withbolt-holes c. The inner cylinder d isprovided upon its lower end with an outwardly-extending rim d', adaptedto fit tightly inthe recess b', as shown in said Fig. 2, and the upperend of the said inner cylin= der is provided with a flange c, whichextends far enough to inclose the opening or water'- .chamber formed bythe two cylinders and is secured to the ilange or rim c. It will thus beseen that the two cylinders may be secured togethersimply by bolting theflanges of the respective cylinders together at the top. The innercylinder is provided with metallic legs, preferably in the form of aquadrant, arranged spirally in the wall of the said cylinder, the innerends extending into the chamberforn'ied by the cylinder andthe outer andbroader ends extending into the waterlchamber formed by the twocylinders. The `inner ends of the quadrant are arranged spirally andserve as baffling-plates for the heat, and as they be'- come heated theheat passes radially through said legs and heats the water in thewater'- chamber and causes a spiral movement of the water toward the topof the heater, Where it passes oi into the water-tank.

B is a lamp or gasburner located within or just under the central recessand heats the various legs as the heat passes upward.

o is a pipe leading from the upper portion of the water-chamber down toa point near the bottom, where the hot water may be drawn olf by thefaucet p.

It will be observed that by constructing the legs in the form of aquadrant and arranging them spirally, so that their inner ends willserve as baffling-plates, and passing the outer and enlarged or broadends into the water-- chamber We increase the facilities for heating byproviding ample means for the diverging rays of the heat to be conductedinto the water-chamber.

Having described our invention, what we claim, and desire to secure byLetters Patent,

1. A heating apparatus of the class described comprising an outercylinder'and an inner cylinder secured together so as to provide awater-chamber between the walls of the two cylinders, and metallic legs,or lugs secured in the inner cylinder, their inner ends arrangedspirally, and their outer ends passing into the water-chamber.

2. A heating apparatus of the class de scribed comprising an outercylinder and an In Witness whereof We have hereunto set inner cylindersecured together so as to proour hands this 10th day of October, 1899.

vide a water-chamber between the Walls of JOHN T. VILKINS.

the two cylinders, and metallic legs, or lugs WILLIAM I-I. WELLS. 5secured in the inner cylinder, their inner ends WILLIAM BAKER.

arranged spirally, and their outer ends pass- Witnesses:

ing into the Water-chamber, said metallic legs GALE S. NORTHROP,

being in the form of a quadrant. JAMES D. DECKER.

